1)
1.a
2.b
3.a
4.a
5.a
6.b
7.a
8.b

2)
1. The baby doesn't cries a lot
2.Milly doesn't plays the piano every afternoon
3.Mike isn't staying in a hotel in Atlanta
4.I don't send a lot of e-mails in the morning
5.It isn't raining
6.We don't do our homework every day
7.I'm not watching TV at the moment

3)
1.f
2.b
3.d
4.c
5.g
6.e
7.a

4)
1.Do you like bananas? Yes, I like bananas
2.Does your mum make muffins? Yes, she does
3.Is Mr Bing washing his car? No, he isn't
4.Are you listening to me? Yes, I'm listening to you
5.Do we know when the film starts? No, we don't
6.Is Dad reading a sports magazine? Yes, he is reading a sports magazine
7.Does the bus leave at 1o'clock? No, it doesn't
8.Are Paul and Mary go to your class? Yes, they are going
9. Am I talking too fast? No, you aren't